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Science. 2007 May 25;316(5828):1124; author reply 1124.

Comment on "Dispersal limitations matter for microbial morphospecies".

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  • 1Department of Ecology and Evolutionary Biology, University of Arizona, BSW 310, 1041 East Lowell Street, Tucson, AZ 85721, USA.


Telford et al. (Brevia, 19 May 2006, p. 1015) reported that freshwater diatoms exhibit regional-scale richness-pH relationships that depend substantially on regional habitat availability. On this basis, the authors argued that, despite their microscopic size, diatoms are not ubiquitously dispersed. Here, I describe my demonstration that their primary evidence against the ubiquitous dispersal hypothesis is spurious.

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